我的应用程序具有 ARSCNView 并可以通过图像检测识别图像。目标是寻找图像，一旦被识别，便将世界位置更改为其中心
某事不起作用。任何帮助将不胜感激！
func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) {
guard let imageAnchor = anchor as? ARImageAnchor else {return}
if let imageName = imageAnchor.referenceImage.name {
switch imageName {
case "myImage":
//OK, the image gets recognized
let refSphere = SCNSphere(radius: 0.02)
let refNode = SCNNode(geometry: refSphere)
refSphere.firstMaterial?.diffuse.contents = UIColor.red.withAlphaComponent(0.8)
node.addChildNode(refNode) // OK, there's a sphere representation on top of the recognized image
sceneView.session.pause()
self.sceneView.session.setWorldOrigin(relativeTransform: node.simdTransform) // Trying to move the world Origin to the center of recognized image
sceneView.session.run(configuration, options: [.resetTracking])
let box = SCNBox(width: 0.05, height: 0.05, length: 0.05, chamferRadius: 0.01)
let boxNode = SCNNode(geometry: box)
box.firstMaterial?.diffuse.contents = UIColor.green.withAlphaComponent(0.9)
boxNode.position = SCNVector3(0,0,0)
sceneView.scene.rootNode.addChildNode(boxNode) // Not OK - I was expecting to have world Origin in the center of the recognized image and a green box on top of it
default:
print("other")
}
}
}
2 回答
我这样做是这样的：
不知道它是否仍然与您相关，但是在您使用
self.sceneView.session.setWorldOrigin更改世界原点后，您可以使用.resetTracking选项恢复会话，该选项会将您的世界原点设置为相机的位置。摆脱该选项应该会有所帮助。